The main purpose of this legislation, known as the Heroes' Tax Exemption Act of 2025, is to provide a tax exemption for active duty servicemembers in the Armed Forces. The objective is to alleviate the financial burden on military personnel by allowing them to keep all of their earnings without having to pay income tax on that income. The key provision of this law is the establishment of a new section in the Internal Revenue Code that specifically states that any income earned by active duty servicemembers will not be included in their gross income for tax purposes.